TAKE PHOTOS AND SHARE YOUR ADVENTURES WITH FAMILY AND FRIENDS Turn your cell phone into a SUPER powerful camera and video camera to capture the beauty of the world around you. It doesn't matter how far away you are! This allows you to not only use the magnification of your optical equipment but also zoom by hand to magnify the image even more and achieve incredible detail. IDEAL FOR BINOCULARS, MONOCULARS, TERRESTRIAL TELESCOPES AND ASTRONOMICAL AND MICROSCOPES - The can be mounted on eyepieces with a diameter between 2.5 and 4.5 cm, which includes most binoculars, monoculars, telescopes and microscopes. It works best if the eyepiece it is mounted on is on a solid, rigid surface (some eyepieces have rubber cups around the eyepiece which can make it difficult to use the adapter). UNIVERSAL DESIGN TO FIT ALMOST ALL SMARTPHONES It has a support for the laptop whose width is very extendable: from 5.5 to 9.8 cm (check that the width of your laptop is included in these measurements). It can be used with iPhone X/8 Plus/7 Plus/6, Plus/5/5s, Samsung Galaxy, S9/S8/S7/S6, Note 9/8/7/6, Sony, LG, HTC and many plus others brands. EXTREMELY EASY TO USE - COMPLETELY SAFE FOR YOUR MOBILE PHONE - We designed it to be easy and safe to grip, both to adapt to your smartphone and to your optical equipment. It is also reinforced with an aluminum plate and a double layer of cotton to improve its durability.